Quote:
Originally Posted by Rand1956
Might that help with the yellowed pages?
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Yes - I think it will help when you have an even background of one color e.g. dark blue with black characters on it. I found it not so efficient for my special problem with uneven yellowness across the pages plus staines.
As long as either the scanner or the software discriminates well enough in b&w the results are good. My current workflow includes ScanTailor and this proves to be worth the additional effort. I always scan gray now with setting the "brightness" of the scanner to approx. 75% of the scale of the Canon P-150 (whatever the scale means
). This makes the overall appearance of the page a bit pale but helps with the b&w discrimination of ScanTailor at a later point in time. There is one ScanTailor feature i.e. Despeckling that I find more and more useful especially for older books.
As to the P-150: meanwhile I scanned 50 books with an average of 200-400 pages per book without problems. I always use a pack of 40 [edit] sheets to feed into the paper feeder and this still works flawlessly. The failure rate is approx. 5%.
Klaus